public class Homework01 {
	public static void main(String[] args) {
		int n1;
		n1 = 13;
		int n2;
		n2 = 17;
		int n3;
		n3 = n1 + n2;
		System.out.println("n3=" + n3);
		int n4 = 38;
		int n5 = n4 - n3;
		System.out.println("n5=" + n5);
	}
}